MANUAL OF THE GRASSES OF THE UNITED STATES 



161 



long as the spikelet; glumes acute, 

 1 to 1.2 and 1.2 to 1.4 mm. long; 

 lemmas turgid, obscurely nerved, 1.8 

 to 2 mm. long, usually bronze-tipped, 

 not hyaline-margined; grain oblong, 

 about 0.7 mm. long. % — Dry or 

 sandy prairies, Georgia; Louisiana 

 and Missouri to Arizona and south 



obscure glandular band below the 

 nodes; sheaths sparingly pilose at the 

 throat; blades involute, glabrous, 

 arching-recurved, 10 to 30 cm. long; 

 panicle erect, open, 10 to 20 cm. long, 

 the branches ascending or spreading, 

 glabrous, stiffly flexuous; spikelets 

 oblong to linear, stramineous or 



Figure 220. — Eragrostis intermedia. Panicle, X 1; floret, X 10. (Type.) 



Figure 221. — Eragrostis swalleni. Plant and panicle, X 1; floret and glandular band, X 10. (Type.) 



to Central America. A few specimens 

 from New Mexico have long spike- 

 lets (as much as 13-flowered) and 

 glabrous axils. 



36. Eragrostis swalleni Hitchc. 

 (Fig. 221.) Perennial; culms in dense 

 tufts, erect, 20 to 50 cm. tall, an 



grayish green, 7 to 10 mm. long, 

 about 2 mm. wide, mostly 8- to 12- 

 flowered, the slender pedicels bearing 

 above the middle a glandular band 

 or spot; glumes acutish, rather broad, 

 about 1.2 and 1.8 mm. long; lemmas 

 rather closely imbricate, acutish, 



